Nut-lock



V(Nu Model.)

W. SGHAUWEKER.

NUT LOCK.

No. 473,642. Patented Apr. 26, 1892.

UNITED STATES PATENT OFFICE.

VILLIAM SUHAUVVEKER, OF PITTSBURGB'PENNSYLVANIA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 473,642, dated April 26, 1892.

Application filed February 27, 1892. Serial No. 423,057. (No model.)

.To all whom it may concern:

Beit known that I, W'ILLIAM SCHAUWEKER, a citizen of the United States, residing at. Pittsburg, in the county of Allegheny and State of Pennsylvania have invented certain new and useful Improvements in Nut-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates in general to that class of devices which are removably connected with bolts and nuts, whereby the nut is kept from being turned loose from the bolt in service, and particularly to an improvement upon the invention which is the subject of a former application of my own, Serial No. 414,401.

The object of this improvementis to adapt the lock to hold a nut iiXed at any point of its revolution where it chances to be when it is brought firmly home to its seat.

To this end my invention consists in the construction and combination of parts forniing a nut-lock hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure I is a face view of my nut-lock in service. Fig. II represents the lock plate or blank as it is punched out and before it is bent into form. Fig. III is an edgewise view of the complete lock-plate. Fig. IV represents the seat for my nut-lock.

5 represents the lock plate, which when punched out, is in the form shown in Fig. II.

G 6 represent two ears, which are to be bent up forward to form a groove, in which a wedgeshaped key 7 is fitted to slide endwise.

8 represents a pair offeathers left projecting inward from the sides of thehole 9, which hole is otherwise circular.

10 represents the lock-seat upon which the plate 5 rests.

ll is the bolt-hole through the lock-seat, and l2 represents a series of grooves in the lock-seat at the sides of the hole adapted to receive the feathers 8 when the same are turned backward, so as to leave the hole 9 completely circular.

13 represents a bolt, which is adapted to fit either tightly or loosely through the hole 1l,

and this bolt is kept from turning by any usual means.

14 represents a screw-nut to be threaded upon the bolt I3. In applying this nut-l0ck the bolt is first to be placed in the hole 1l with its screw end projecting outward. Then the plate 5 is to be placed upon the bolt with its feathers 8 in any pair of the slots l2. Now the nut should be placed upon the bolt and screwed on, then the key 7 should be put in place, and if it fits against a side of the nut or against a corner therof, which would prevent the nut from turning loose, it may be driven in place and fastened from coming out by means of wire pin or loop l5; but if this trial proves that the nut-lock is not in a position to hold the nut from being turned off or being loosened lit should be observed at what quarter the lock should be set in order to properly hold the nut. Then the key 7 should be withdrawn, the nutl and plate removed, and the plate turned to the position required, and after placing its feathers S in the nearest pairs of slots l2 the nut maybe turned and tightened and fastened by the keys before described. There may be any number of the slots l2, and it is not positively necessary that there should be morethan one of the feath-U ers S.

Having thus fully described my invention, what I believe to be new, and desire to secure by Letters Patent, is the following:

The combination of a lock-seat having a boit-hole through it with a series of slots in the sides of and parallel with the said hole, a plate having a bolt-hole through it and one or more feathers at the side of the hole fitted to closely engage the aforesaid slots, and mechanical means for connecting the plate with a nut and disconnecting it at will, substantially as described, whereby the same washer may be set at various angles around the hole and be mechanically engaged with or disengaged from the nut repeatedly at any such angie without changing the form of the Washer. In testimony whereof I afX my signature in presence of two witnesses.

WILLIAM SOI-IAUWEKER. Witnesses:

WILLIAM DoLAN', M. J. BRADLEY. 

